AQUATIC SAMPLING


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Mod. Hesslein Sampler
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Aquatic Sampling Equip.
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Electrofishing

Electro-Fishing Unit - Model 2000     Boat Mounted Electro-Fisher - Model 2020
Electro-Shock Low Voltage Gloves    Electro-Shock Dip Net     Fish Measuring Board

lectrofishing is an efficient capture method that can be used to obtain reliable population estimates, length-weight relationships, and age and growth on most streams. Electrofishers tend to collect larger fish more easily than smaller fish but variable control electrical transformers allow adjustable control of voltage, pulse, and electrical frequency thereby reducing size selectivity. Electrofishing efficiency can also be affected by stream conductivity, temperature, depth, and clarity of water. Each condition must be considered to ensure a reliable population estimate. Electrofishing can be more efficient than other methods of population estimates such as seining and underwater observation. Boulder-rubble substrate, turbidity, aquatic vegetation, and undercut banks can bias other population estimation methods.


Electro-Fishing Unit - Model 2000

The Model 2000 Electro-Fishing Unit is a 2000 watt electro-fisher that features variable voltage and frequency mounted on a non-conductive nylon pack frame with quick release shoulder straps and hip belt. It is a lightweight, noise free unit with electronic digital timer and waterproof case. The Model 2000 is completely portable and comes with an aluminum field case for easy storage, traveling and carrying that will house all parts for the electro-fisher.

605-097                  Model 2000 Electro-Fishing Unit

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Boat Mounted Electro-Fisher - Model 2020

The Model 2020 is a boat mounted electro-fishing unit that features a 2500 watt, 300 volt battery-operated power source. Specifications are the same as the model 2000 but uses a larger 24V battery source along with higher wattage and voltage output.

605-103           Model 2020 Boat Mounted Electro-Fisher

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Electro-Shock Low Voltage Gloves

Made of natural rubber, these gloves are for use on circuits of up to 1,000 volts and work well in electro-fishing applications. Maximum use voltage in accordance with ASTM specifications, 1000 volts. 11" long.

605-109             Size 10 Gloves                0.8 lb.

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Electro-Shock Dip Net

The fiberglass handle of this dip net insulates from user shock!  It also features an aluminum bow construction which eliminates netting abuse from rocks, sand, branches, etc.  The nylon netting is completely encased in the bow.

Dimensions: 16" x 16" bow with a 6' fiberglass handle.  Nylon net is 3/16" mesh x 8' deep.

605-091     Electro-Shock Dip Net     2lbs.

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Fish Measuring Board

This high density polyethylene Wildco® Fish Measuring Board provides fast and accurate fish measurements.  Its smooth surface and east-to-read scales allow for minimal trauma to the fish during data collection.  The tempered aluminum straight edge is set up for metric measurements, but can easily be turned around for English measurements.  A tapered backstop helps prevent fish from sliding off during measurement.  Available in 30" (75cm) and 24" (60 cm) sizes with English and metric measurements.  English scale has .1" divisions.  Metric scale has 1 mm divisions.

605-115      Measuring Board, 30" (75 cm)     7lbs.

615-116     Measuring Board, 24" (60 cm)      6lbs.

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